Tensile Deformation of a Nickel-Base Superalloy for Application in Hydrogen Generation

Document Type

Article

Publication Date

2-2008

Publication Title

International Journal of Hydrogen Energy

Volume

33

Issue

3

First page number:

945

Last page number:

952

Abstract

Austenitic Alloy C-22 has been proposed to be a structural material in sulfuric acid decomposition process related to a thermochemical cycle associated with hydrogen generation using nuclear heat. In view of unusually high operating temperatures associated with this cycle, tensile properties of this alloy have been determined as functions of temperature and strain rate. A mechanistic understanding of tensile deformation based on activation energy, work-hardening index and dislocation density has been presented. Furthermore, the results of fractographic evaluations of the tested specimens have been included.

Keywords

Alloy C-22; Alloys; Austenite; Deformations (Mechanics); Deformation mechanism; Hydrogen as fuel; Hydrogen generation; Steel alloys; Strains and stresses; Tensile properties

Disciplines

Materials Science and Engineering | Mechanical Engineering | Mechanics of Materials | Metallurgy | Oil, Gas, and Energy | Sustainability

Language

English

Permissions

Use Find in Your Library, contact the author, or interlibrary loan to garner a copy of the item. Publisher policy does not allow archiving the final published version. If a post-print (author's peer-reviewed manuscript) is allowed and available, or publisher policy changes, the item will be deposited.

UNLV article access

Search your library

Share

COinS